Finding the Third Proportional to 8,279.72 and 12,043.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,279.72 : 12,043.69 = 12,043.69 : x
2. Step 2: Convert to fraction form
   8,279.72/12,043.69 = 12,043.69/x
3. Step 3: Cross multiply
   8,279.72x = 12,043.69 × 12,043.69
4. Step 4: Simplify right side
   8,279.72x = 145,050,408.60
5. Step 5: Solve for x
   x = 145,050,408.60/8,279.72
6. Step 6: Final answer
   x = 17,518.76